Q.

In atmosphere a thickness of about 10 to 50 km contains O2, O3, N2 and O-atoms. This layer is called

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a

troposphere

b

stratosphere

c

mesosphere

d

thermosphere

answer is B.

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Detailed Solution

stratosphere
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In atmosphere a thickness of about 10 to 50 km contains O2, O3, N2 and O-atoms. This layer is called